A corpobatioz



thereof are .maintained in proper position 1 n. sir ons JOSJEPH BERGE, OF FLINT, MICHIGAN, ASSIGNOR '0 CMMPION IGNITION COMPMW, F

' FLINT, MICHIGALI, it CDR'PORATION Gl? MICHIGAN.

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vSnecicaton of Letters latent. Patented Bec.; i6, jigl.

- Application filed April 14, 1919. Serial No. Q89,828.

To all whom i may concern.'

Be it known thatl, JOSEPH Busen, a citi-v zen of the United States, and resldent oi Flint, Genesee county, State of Michigan,

h ave invented certain new and useful Improvements in Speedometers'lof which the following is a specification,

My invention relates to transmission gear-.3

ing for use in connection with automobiles and similar self-propelled vehicles, and 'particularly to driving' means provided in connection with such transmission gearing for operating a speedometer, odometeror similar instrument.

The object of my invention is to provide, in combination with transmission gearing for use in connection with a motor vehicle, means for operating a speedometer or odometer; the driving means thus provided for -thespeedoineter or odometer being so arranged that the driving and driven members relative to one another, and to the driving shaft whereby they are operated, in a better and more fixed and permanent manner than hasheretofore ordinarily been the ease.

My invention is illustrated in its preferred embodiment in the drawing forming part of this specification, although it will be appreciated that the same includes such variations and modifications of the particular form thereof illustrated as are obvious to those skilled in the art to which inv invention relates, and such as' come within the scope oi an ordinary type showing the driving gear whereby the speed-v ometer or-similar instrument is operated; and,

Fig. 4. is IaV vieutfshowiig a section on planes indicated by the broken line Pif-IV, Fig. 3.

Referring the drawing, there'erence numeral 4 designates the' end portion of the casing provided for-.the traiougeer- While the head referred ing `ordinarily present in self-propelled vehicles and Within which the concerned with the driving of the vehicle at various speeds, and commonly. with the reverse thereof, are located and held in proper relation with one another. v'lfhese gears, however, are not illustrated herein as my present invention is in no way concerned with features of gear construction or errangement.

The end ofthe gear casing or housing 4 is commonly provided with an opening 5, and vthe reference numeral 6 designates a cover or head for closing; the said opening; the same being secured to the gear housing in any Way, as by means of bolts or` can screws passing through the openings 7. The head 6 is provided with a .bearing seat Within 'which races 8 for ball bearings 9 are provided, Wherehy a hezufing` is provided for the left hand end of a rotatable driving shaft 10 driven by the gears Within the gear casing, and from which shaft motion isconimunicated to the rear driven'axle of the vehicle. It will be appreciated, however, that to provides asupport forthe bearing for the driven shaft in question, the seid bearingmay be of any apvarious ears propriete form and is not limited to the pary ticular type of bearing referred to herein.

The'head 6 also carries a casing made up of two sections 1l-12 secured together by bolts 1.3, and the general form of which casing 'is spherical; the'spherical end 15 of a torque tube 16 is secured, the form of the casing and head shovvmg` thus providing for vthe adjustment of the torque. tube into such angular positionv as may be necessary because of the relative locations of the transmission gearing housing und of the rear axle of the vehicle.

Motion is communicated from the driving shaft 10 to a driven shaft 17 extending along the torque tube i6 vehicle for driving; the same, commonly through suitable diil'erential gearing, through a 'universal joint 'or connection located Within the spherical head l5 et the torque tube i6 and which universal joint is indicated'in dotted lines in Fig'. 1,' this method of dri vnk because of the angular ing being necessaryposit-ion which the torque tube ordinarily as# sumes; and the reference numeral -18 designates a driven member, which is in factone and Within which casing and to the rear axle' oi' the of the members of the universal joint revso municatcd from the driving shaft 10 through a-squared projection 19 at the end of the said shaft extending into a correspondingly shaped opening provided in said driven member.

Formed in the interior of the element provided by the casing section 1l and the head 6 is a circular recess indicated by the reference numeral 20, said recess'being located between the spherical casing made up of the sections 11-12 and the bearing for the driving shaft 10; and within this recess is located a spiral gear 2l, said gear 4being carried by the end of the driven member 18 of the universal joint, and driven in any way but preferably by means of adriving key or washer vQ2 having a squared opening through which the end 19 of the shaft 1() extends, and lugs 23 tit-ting into recesses in the said gear, as best shown in Fig. 3, to thereby provide a positive driving connection through whichl the spi 'al gear 21 is operated. 1

Extending tangentially to the circular recess 2O is a passage 24, this passage and its arrangementy relative to the circular recess being best shown in Fig, 2 of the drawing. Located within the passage in question is a sleeve '25 which is provided with bearings for a driving shaft 26, the inner end of said shaft being provided with a pinion 2T which is in mesh with the spiral gear 21, and whereby motion is communicated to the shaft from the said gear, This shaft :26 is employed to drive the odometer', speedon'ieter or other instrument to be operated; the driving being ordinarily accomplished through and by means of a suit-able flexible shaft extending frnn the said shaft tothe instrument to be driven, suitable right angle gearing 2S, 2f) being preferably provided in order that the flexible shaft may be more conveniently connected with the said driving shaft..

The sleeve 25 whereby the shaft 2G is car- I'ied is shown as provided with a groove 30, and 3l designates a set-screw whereby the sleeve may be securely held in place within the passage in which it is located; the setscr'ew beingiurranged at an angle to the plane of the. groove so that the inner end thereof which enters the groove will tend to force the sleeve inward or downward and to the right. in Fig. 2, as will be appreciated.

The reference numeral 32 designates an oil well for lubricating the variousI parts of the universal joint above referred to. This lubricating feature` however, is not involved in the present applicatiouand need not be referred to in detail.

Having thus described and explained my invention, I claim and desire to secure by Letters Patent:v

l. In transmission gearing of the class de scribed, a casing having an' opening therein; a head for closing said opening .and which head is provided with a bearing for supporting the end of a rotatable driving shaft; a second casing carried by said head; an internal circular recess located between said bearing and said spherical casing; a driven member to which motion is communicated from said driving shaft; a gear located within said circular recess and which gear is driven from said driving shaft; a passage extending tangential to said circular recess; a sleevel secured in place within said pas sage; a shaft carried by and rotatable in bearings provided by said sleeve; and a pinion carried by said shaft, and which pinion is in mesh with said gear.

2. In transmission gearing of the class de scribed, a gear casing having an opening therein; a head for closing said opening and whichhead is provided with a bearing for supporting the end of a rotatable driving shaft; acasing carried by said head; an internal circular recess located between said bearing and said spherical casing; a driven member to which motion is communicated from said driving shaft; a gear carried by and rotatable with said driven member and located within said circular recess; a passage extending tangential to said circular recess: a sleeve secured in place within said passage; a shaft carried by and rotatable in bearings carried by said sleeve; and a pinion carried by said shaft, and which pinion is in mesh with said gear.

3, In transmission gearing of the class described, a gear casing having an opening therein; a head for closing said opening and which head is provided with a bearing for supporting the end of a rotatable driving shaft; a spherical casing carried by said head; an internal circular recess located between said bearing and said spherical casing; a driven member to which motion is communicated from saiddriving shaft; a gear carried by and rotatable with said driven member and located within said circular recess; a passage extending tangential to said circular recess; a sleeve located within said passage and having an exterior groove; a set-screw arranged at an angle to the axis of said sleeve and extendingthrough the wall of said passage, and the inner end of which is adapted to enter said groove lo thereby hold said sleeve in place; a shaft carried by and rotatable in bearings forl'ned within said sleeve: and a pinion secured to the inner end of said shaft. and which pinion is in nicshwith the said gear.

ln testimony whereof l affix my signature.

JOSEPH BERGE. 

